A certain housing manufacturer made a mistake in the site dimensions by 5 meters.

Today was a day where I focused on planning from morning to night.
The owner was looking at the layout and first floor plan that the home builder had prepared for him.
As soon as I started thinking about it, something felt off.
When you create a site plan based on the layout and try to draw the wall core on it,
The site does not seem as spacious as it appears on the first floor plan.
I thought that was odd, so I compared the two drawings and found that the length from north to south was
There is a difference of 5m.
The layout diagram is shorter, but it includes the dimensions after measurements have been taken.
However, the site shown on the first floor plan, where the planned building is actually drawn, is 5m larger.
If the layout drawing is larger, the building would not fit on the site in the first place.
I was even more surprised because I was close to signing the contract.
What would they have done if they had found out they couldn't enter the premises?
Usually, there are drawings with and without dimensions.
The theory is to trust the one that includes the dimensions.
However, when I looked at the aerial photographs on Google Earth again,
Apparently, the site shown on the first floor plan looks closer to the current situation.
I'm becoming more and more confused...
This is a very large manufacturer that everyone knows.
I have been well aware for a long time that our design skills are poor,
This is the first time I've seen such a low level mistake.